PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs CO open 3bb

BB vs CO open 3bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 3bb · Big blind to act

Fits exactlyno game we have checked

Close1 games

CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 5.14bbYour cards?

1bb

3bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 67.9%Call 23.4%Raise 6/9bb 8.7%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 67.9%, calls 23.4% and raises 6/9bb 8.7%. Always call: 22, A9s-ATs, A6s, A2s, K2s-K4s, Q6s-Q7s, J7s, T7s, 97s, 85s, 75s, 64s, 53s, A8o-AQo, KTo+, QTo+. Always raise 6/9bb: JJ+, AQs+, KQs, JTs. Mixed: 33-TT, AJs, A7s-A8s, A3s-A5s, K5s-KJs, Q8s+, Q4s-Q5s, J8s-J9s, T8s+, 98s, 96s, 86s+, 76s, 65s, 54s, 43s, AKo, JTo, T9o.

Always fold: Q2s-Q3s, J2s-J6s, T2s-T6s, 92s-95s, 82s-84s, 72s-74s, 62s-63s, 52s, 42s, 32s, A2o-A7o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o-T8o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 22, A9s-ATs, A6s, A2s, K2s-K4s, Q6s-Q7s, J7s, T7s, 97s, 85s, 75s, 64s, 53s, A8o-AQo, KTo+, QTo+
Always raise 6/9bb: JJ+, AQs+, KQs, JTs
Mixed: 33-TT, AJs, A7s-A8s, A3s-A5s, K5s-KJs, Q8s+, Q4s-Q5s, J8s-J9s, T8s+, 98s, 96s, 86s+, 76s, 65s, 54s, 43s, AKo, JTo, T9o

Settings: 4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Rake sources for the games it fits: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.